Add Commas to Numbers

This tool processes numerical input by identifying digit sequences and applying appropriate thousand separators according to international formatting standards. The parser recognizes integers and decimals, preserving decimal precision while inserting commas at every third position from the right of the whole number portion. Support extends to multiple regional formats including US (1,000,000), European (1.000.000), and Indian (10,00,000) numbering systems.

The formatter handles multiple numbers within text blocks, operating on each numeric value independently without altering surrounding characters. Processing occurs through regular expression matching combined with string manipulation algorithms that account for various input formats including scientific notation, negative values, and mixed text-number content. The engine maintains numerical integrity by never modifying decimal places or significant digits.

Users can format financial data, statistical reports, spreadsheet exports, or any document requiring improved number readability. The client-side implementation ensures instant formatting without network delays, making it suitable for processing sensitive financial information while maintaining complete privacy. Bulk processing capability allows formatting entire data sets simultaneously.